20100080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1$

素因数の和:295

約数の個数: 160

約数和(自身を含む): 62995968

約数和(自身を除く): 42895888

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 80, 88, 91, 104, 110, 112, 130, 140, 143, 154, 176, 182, 208, 220, 251, 260, 280, 286, 308, 364, 385, 440, 455, 502, 520, 560, 572, 616, 715, 728, 770, 880, 910, 1001, 1004, 1040, 1144, 1232, 1255, 1430, 1456, 1540, 1757, 1820, 2002, 2008, 2288, 2510, 2761, 2860, 3080, 3263, 3514, 3640, 4004, 4016, 5005, 5020, 5522, 5720, 6160, 6526, 7028, 7280, 8008, 8785, 10010, 10040, 11044, 11440, 13052, 13805, 14056, 16016, 16315, 17570, 19327, 20020, 20080, 22088, 22841, 26104, 27610, 28112, 32630, 35140, 35893, 38654, 40040, 44176, 45682, 52208, 55220, 65260, 70280, 71786, 77308, 80080, 91364, 96635, 110440, 114205, 130520, 140560, 143572, 154616, 179465, 182728, 193270, 220880, 228410, 251251, 261040, 287144, 309232, 358930, 365456, 386540, 456820, 502502, 574288, 717860, 773080, 913640, 1005004, 1256255, 1435720, 1546160, 1827280, 2010008, 2512510, 2871440, 4020016, 5025020, 10050040, 20100080]

約数ペア:

[(1, 20100080), (2, 10050040), (4, 5025020), (5, 4020016), (7, 2871440), (8, 2512510), (10, 2010008), (11, 1827280), (13, 1546160), (14, 1435720), (16, 1256255), (20, 1005004), (22, 913640), (26, 773080), (28, 717860), (35, 574288), (40, 502502), (44, 456820), (52, 386540), (55, 365456), (56, 358930), (65, 309232), (70, 287144), (77, 261040), (80, 251251), (88, 228410), (91, 220880), (104, 193270), (110, 182728), (112, 179465), (130, 154616), (140, 143572), (143, 140560), (154, 130520), (176, 114205), (182, 110440), (208, 96635), (220, 91364), (251, 80080), (260, 77308), (280, 71786), (286, 70280), (308, 65260), (364, 55220), (385, 52208), (440, 45682), (455, 44176), (502, 40040), (520, 38654), (560, 35893), (572, 35140), (616, 32630), (715, 28112), (728, 27610), (770, 26104), (880, 22841), (910, 22088), (1001, 20080), (1004, 20020), (1040, 19327), (1144, 17570), (1232, 16315), (1255, 16016), (1430, 14056), (1456, 13805), (1540, 13052), (1757, 11440), (1820, 11044), (2002, 10040), (2008, 10010), (2288, 8785), (2510, 8008), (2761, 7280), (2860, 7028), (3080, 6526), (3263, 6160), (3514, 5720), (3640, 5522), (4004, 5020), (4016, 5005)]